Yo-yo champion Harrison Lee explains yo-yo tricks in 26 levels of difficulty. Starting with tricks using an unresponsive yo-yo, Harrison progresses until he's popping the yo-yo into the air, and ...

Alex Dias, 11, performs a trick with his yo-yo at his home in Dunlap Thursday. Ann Dias can always find her son in a crowd. All she has to do is listen for the whirr and zing of a yo-yo string. "He yo ...